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Articles 1 - 7 of 7
Full-Text Articles in Engineering
Using Automated Inclusion Analysis For Casting Process Improvements, Vintee Singh, Semen Naumovich Lekakh, Kent D. Peaslee
Using Automated Inclusion Analysis For Casting Process Improvements, Vintee Singh, Semen Naumovich Lekakh, Kent D. Peaslee
Materials Science and Engineering Faculty Research & Creative Works
Different industrial melting and ladle practices (deoxidation, slag, refractory types, etc.) used in steel foundries were analyzed and compared using an ASPEX automated inclusion analyzer for study of inclusions. The effects of deoxidation and pouring practices on the size, type and number of inclusions were evaluated for steel foundries equipped with induction and arc melting furnaces, with capacities ranging from 1 to 20 tons. Samples were collected from the furnace, ladle, and castings. Specific rules were developed for classification of inclusions by composition, size distribution and shape. Inclusion statistics, including composition, quantity, shape, and size during cast steel processing from …
Energy Efficiency In Steel Casting Production, Raymond Monroe, Kent D. Peaslee, R. Eppich
Energy Efficiency In Steel Casting Production, Raymond Monroe, Kent D. Peaslee, R. Eppich
Materials Science and Engineering Faculty Research & Creative Works
No abstract provided.
Improvements In Steel Melting Efficiency -- Industrial Trials, Kent D. Peaslee, Semen Naumovich Lekakh, Edith Martinez
Improvements In Steel Melting Efficiency -- Industrial Trials, Kent D. Peaslee, Semen Naumovich Lekakh, Edith Martinez
Materials Science and Engineering Faculty Research & Creative Works
Industrial trials were completed to improve energy efficiency in steel melting. First, the benefits of increased chemical energy from an oxyfuel burner and a Co-Jet system in a basic 20 ton electric arc furnace (EAF) were studied. Observations and measurements were made during production before and after the installation of the two systems. The additional chemical energy improved energy efficiency and resulted in increased production. In addition, production using a basic EAF practice was compared to the traditional acid EAF practice. Second, an industrial trial using a 750 lb ladle with a combination of a lightweight alumina castable refractory and …
Postage Stamps. Metallurgy, Art, History, Fathi Habashi
Postage Stamps. Metallurgy, Art, History, Fathi Habashi
Fathi Habashi
Postage stamps are important means of communication and many countries have recorded important events, honored worthy individuals, and described interesting facts through this medium. Many historical facts, sometimes obscure, can be found on stamps. Stamps have artistic value, they are created by artists. The present 125-page book is a facsimile edition of 20 articles published by the author in different technical journals; fully illustrated in color. They cover the history of metallurgy, industrial minerals, history of mining, and selected topics such as refractories, metal casting, welding, and mining equipment.
Structural Characteristics Of Some Ternary Ag-In-Sn Alloys, Zeljko J. Kamberovic
Structural Characteristics Of Some Ternary Ag-In-Sn Alloys, Zeljko J. Kamberovic
Zeljko J Kamberovic
The Ag-In-Sn system, as one of potential lead-free solder materials, was studied in this paper. The investigated alloys were chosen from two sections, with molar ratio of In:Sn equal to 1:4; 1:2. DTA, XRD, SEM and microhardness investigations were used in order to determine structural characteristics of chosen Ag-In-Sn ternary alloys.
Determination Of The Thermal Histories Of Coke In A Blast Furnace Through X-Ray Analysis, B. J. Monaghan, Robert J. Nightingale, V. Daly, E. Fitzpatrick
Determination Of The Thermal Histories Of Coke In A Blast Furnace Through X-Ray Analysis, B. J. Monaghan, Robert J. Nightingale, V. Daly, E. Fitzpatrick
Faculty of Engineering - Papers (Archive)
A study has been undertaken to identify the source of coke fines sampled from the deadman area of the blast furnace. Using measurements of the coke crystallite dimension LC, it was established that some of the fines found in the deadman area of a blast furnace were not simply the degradation products of the lump coke in this area. The LC was measured using standard X-ray analysis techniques. The coke fines had a higher LC than the coke lump and therefore have experienced a higher maximum temperature than the associated coke lump. This finding has been interpreted as at least …
Structure And Kinetics Of Internal Oxidation In Ag-Sn Alloys, Zeljko J. Kamberovic
Structure And Kinetics Of Internal Oxidation In Ag-Sn Alloys, Zeljko J. Kamberovic
Zeljko J Kamberovic
Internal oxidation in Ag-Sn-In-Te and Ag-Sn-Cu-Bi alloys was tested. Microstructures of casted and homogenized samples, as well as after internal oxidation were followed by optical microscopy. The structure of Ag-Sn-Cu-Bi alloy was found finer, and the oxidation rate is considerably higher compared to the Ag-Sn-In-Te type alloy sheets. It seems that the size and volume fraction of secondary phase particles (probably ζ type) can influence the process of internal oxidation. In the Ag-Sn-In-Te alloy type “wavy oxidation” was noticed with oxide free regions.